diff --git a/src/core/js/edit_mode.js b/src/core/js/edit_mode.js
index 2d39fe4622e2c693c0e362e9f44b975a82e5211a..8b7e5fabb075a87e1ddf92d5d568abea589e6ddc 100644
--- a/src/core/js/edit_mode.js
+++ b/src/core/js/edit_mode.js
@@ -1140,7 +1140,7 @@ var edit_mode = new function () {
             });
 
             result = result.concat([inputs[0],
-                $('<span>Insert element at the end of the list: </span>')
+                $("<span>Insert element at the end of the list: </span>")
                 .append(insertButton)[0]
             ]);
         }